diff --git a/tests/ui/crashes/ice-6254.stderr b/tests/ui/crashes/ice-6254.stderr
index 22d82a30c..263c27d3d 100644
--- a/tests/ui/crashes/ice-6254.stderr
+++ b/tests/ui/crashes/ice-6254.stderr
@@ -6,6 +6,8 @@ LL |         FOO_REF_REF => {},
    |
    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
    = note: for more information, see issue #62411 <https://github.com/rust-lang/rust/issues/62411>
+   = note: the traits must be derived, manual `impl`s are not sufficient
+   = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
    = note: `-D indirect-structural-match` implied by `-D warnings`
 
 error: aborting due to previous error